Then away he clanked, and I heard the slamming of a door to another apartment. I knew that probably he came from the outside, and that the way to freedom, or at least to the open air, must be in the direction from which he was walking. I stepped out into the passageway and tiptoed down it. Then thinking that cautious steps might attract notice, I changed my gait to a military stride, and swaggered along with chest out and shoulders back. My doing this was fortunate, for I went by the open entrance of a small apartment, and a young man in undress uniform sat reading a book with the aid of a small lamp. He glanced out at me, but made no comment. I had affected to yawn, and half covered my face with my hand. Now I came to the end of the corridor, and here were three doors; the one on the left shut, the centre one partly ajar, and the one on the right closed with large bolts. Looking through the door that was open, I could perceive a man's leg stretched out on a chair as if he were resting, so I turned to the one on the left. I was about to draw the latch when from within I heard the sound of voices in conversation. "Good for you! Now another throw," some one said. Then came the rattle of a dice-box. There was nothing for it but to try the farther door, the one that was bolted, and to do this I had to run the risk of attracting the man's attention in the middle room. I stepped by, and giving a quick glance over my shoulder, I saw that he was asleep, with his mouth wide open and his arms folded across his chest. With trembling fingers I drew the bolt of the heavy, iron-studded door, and swung it open. Here was another passageway much like the first, with rooms on either side and a staircase in a recess at the farther end. Good fortune still favored me. I tramped down it, and found that to go out I had evidently to ascend the steps. When I reached the foot and had placed my hand on the iron guard-rail, I almost gave a gasp of sheer fright. There standing on a little platform at the top was a grenadier, with his musket leaning against him. He had caught sight of me, however, at this same instant; the hall was dimly lighted with a flickering taper, and I was in full view. But to my surprise the man said nothing, but drew himself erect and his musket snapped to a present. Drawing the heavy cloak that I had thrown about my shoulders up to my nose, I hurried up the steps and returned the soldier's salute in proper manner, but with shaking fingers, as I passed him.